RIDGID introduces the 18V 4.0 Ah MAX Output Lithium-Ion Battery (2-Pack) and 18V 2.0 Ah MAX Output Battery with 4.0 Ah MAX Output Battery and Charger. These MAX Output 4.0 Ah batteries will provide up to 3X more runtime compared to the 1.5 Ah lithium-ion battery (AC870015). The advanced electronics in MAX Output batteries enable users to power through the most demanding applications. These RIDGID MAX Output 4.0 Ah batteries are compact and lightweight, which reduces user fatigue. The RIDGID MAX Output 2.0 Ah battery will provide extended runtime compared to the 1.5 Ah Lithium-ion battery (AC870015). As always, these RIDGID MAX Output Batteries are 100% compatible with all RIDGID 18V tools. The included 18V Fast Charger is 2X faster than the 18V Compact Charger (AC86093) and can charge the 4.0 Ah battery in under one hour. Best of all, this tool is backed by the Industry's Only Lifetime Service Agreement, simply register within 90 days of purchase for FREE Parts, Free Service, For LIFE. This set includes three 4.0 Ah MAX OUTPUT Lithium-Ion Batteries, one 18V 2.0 Ah MAX Output Battery, an 18V Charger and operator's manuals.